: Initially, services utilized refurbished Class 116 Diesel Multiple Units . 2. Expansion and Modernization (1980s–1990s)
: It linked Four Oaks in the north to Longbridge in the south via Birmingham New Street . Birmingham Cross City Line
: Services reached Redditch in 1980, eventually increasing from hourly to half-hourly due to high demand. : Initially, services utilized refurbished Class 116 Diesel
: A £64.5 million project to electrify the route was completed on June 6, 1993 . : Services reached Redditch in 1980, eventually increasing
: A fleet of Class 323 Electric Multiple Units (EMUs) was introduced, becoming the line's iconic rolling stock for decades, though they are currently in the process of being replaced by newer Class 730 trains. 3. Modern Evolution (2018–Present)
: The project saw the reopening of Five Ways station and the construction of new stations like University and Longbridge to serve the expanding city.